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See more synonyms for sidesplitting on Thesaurus.com
  1. convulsively uproarious: sidesplitting laughter.
  2. producing uproarious laughter; extremely funny: sidesplitting farce.
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Origin of sidesplitting

First recorded in 1855–60; side1 + splitting
Related formsside·split·ting·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for sidesplitting

amusing, entertaining, farcical, good-humored, hilarious, hysterical, joking, silly, slapstick, uproarious, witty, knee-slapper

Examples from the Web for sidesplitting

Contemporary Examples of sidesplitting

Historical Examples of sidesplitting